FSL137H Fairchild Semiconductor, FSL137H Datasheet

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FSL137H

Manufacturer Part Number
FSL137H
Description
The highly integrated FSL137H consists of an integrated current mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET
Manufacturer
Fairchild Semiconductor
Datasheet
© 2009 Fairchild Semiconductor Corporation
FSL137H Rev. 1.0.3
FSL137H
Green Mode Fairchild Power Switch (FPS™)
Features
Applications
General-purpose switch-mode power supplies and
flyback power converters, including:
Ordering Information
Part Number SenseFET
FSL137HNY
Built-in 5ms Soft-Start Function
Internal Avalanche Rugged 700V SenseFET
Low Audio Noise
High-Voltage Startup
Fixed PWM Frequency at 100KHz
Linearly Decreasing PWM Frequency to 18KHz
Peak-Current-Mode Control
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking (LEB)
Synchronized Slope Compensation
Internal Open-loop Protection (OLP)
V
V
Constant Power Limit (Full AC Input Range)
Internal OTP Sensor with Hysteresis
SMPS for VCR, SVR, STB, DVD & VCD Player,
Printer, Facsimile, & Scanner
Adapter for Camcorder
DD
DD
Under-Voltage Lockout (UVLO)
Over-Voltage Protection (OVP)
3.0A 700V
Operating Temperature
-40°C to +105°C
Range
Description
The
integrated current mode Pulse Width Modulator (PWM)
and an avalanche-rugged 700V SenseFET. It is
specifically
Switch Mode Power Supplies (SMPS) with minimal
external components.
The integrated PWM controller features include a
proprietary green-mode function that provides off-time
modulation to linearly decrease the switching frequency
at light-load conditions to minimize standby power
consumption. To avoid acoustic noise problems, the
minimum PWM frequency is set above 18KHz. The
green-mode function enables the power supply to meet
international power conservation requirements. With the
internal high-voltage startup circuitry, the power loss
due to bleeding resistors is also eliminated. To further
reduce power consumption, the PWM controller is
manufactured using the BiCMOS process, which allows
an operating current of only 3.5mA.
The FSL137H built-in synchronized slope compensation
achieves
proprietary
constant output power limit over a wide AC input
voltage range, from 90V
The FSL137H provides many protection functions. In
addition to cycle-by-cycle current limiting, the internal
open-loop protection circuit ensures safety when an
open-loop or output short-circuit failure occurs. PWM
output is disabled until V
limit, when the controller starts up again. As long as V
exceeds ~28V, the internal OVP circuit is triggered.
Compared to a discrete MOSFET and controller or RCC
switching converter solution, the FSL137H reduces total
component count, design size, and weight while
increasing efficiency, productivity, and system reliability.
These devices provide a basic platform well suited for
design of cost-effective flyback converters.
8-Pin Dual In-Line Package (DIP)
highly integrated
stable
designed
external
Package
peak-current-mode
AC
DD
line
for
FSL137H
to 264V
drops below the UVLO lower
high-performance
compensation
AC
.
consists
September 2010
control.
www.fairchildsemi.com
Packing
Method
Tube
ensures
of
offline
The
an
DD

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FSL137H Summary of contents

Page 1

... As long as V exceeds ~28V, the internal OVP circuit is triggered. Compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL137H reduces total component count, design size, and weight while increasing efficiency, productivity, and system reliability. ...

Page 2

... T =50°C ambient Maximum practical continuous power in an open-frame design with sufficient drain pattern as a heat sink =50°C ambient. A Internal Block Diagram © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 HV Drain VIN FB VDD GND Figure 1. Typical Flyback Application (2) 230V ± 15% ...

Page 3

... SenseFET Drain. High-voltage power SenseFET drain connection. 8 Drain SenseFET Drain. High-voltage power SenseFET drain connection. © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 F – Fairchild Logo Z – Plant Code X – 1-Digit Year Code Y – 1-Digit Week Code TT – 2-Digit Die Run Code T – ...

Page 4

... Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter T Operating Ambient Temperature A © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 Parameter (7) (8) <50°C) A (9) Human Body Model: JESD22-A114 ...

Page 5

... HV-LC Oscillator Section f Frequency in Nominal Mode OSC f Green-Mode Frequency OSC-G D Maximum Duty Cycle MAX f Frequency Variation vs Frequency Variation vs. Temperature f (11) DT Deviation © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 Conditions 700V 560V 0V 125°C A (12 10V ...

Page 6

... OTP Notes: 11. These parameters, although guaranteed, are not 100% tested in production. 12. Pulse test: pulse width ≤ 300μs, duty ≤ 2%. 13. When activated, the output is disabled and the latch is turned off. © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 (Continued) Conditions ...

Page 7

... Typical Characteristics Figure 5. I vs. Temperature DD-ST Figure 7. V vs. Temperature DD-ON Figure 9. V vs. Temperature TH-OLP © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 Figure 6. I vs. Temperature DD-OP Figure 8. V vs. Temperature DD-OFF Figure 10. V vs. Temperature DD-OVP 7 www.fairchildsemi.com ...

Page 8

... Typical Characteristics Figure 11. I vs. Temperature HV Figure 13. f vs. Temperature OSC-G Figure 15. V vs. Temperature IN-RL © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 Figure 12. f vs. Temperature OSC Figure 14. V vs. Temperature IN-ON Figure 16. V vs. Temperature IN-H 8 www.fairchildsemi.com ...

Page 9

... Typical Characteristics Figure 17. V vs. Temperature IN-L Figure 19. V FB-OLP Figure 21. V FB-ZDC © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 vs. Temperature vs. Temperature 9 Figure 18. V vs. Temperature FB-N Figure 20. t vs. Temperature D-OLP Figure 22. I vs. Temperature DD-BM www.fairchildsemi.com ...

Page 10

... Once V DD-ON FB PWM frequency starts to linearly decrease from 100kHz to 18kHz to reduce the switching losses decreases below V is fixed at 18kHz and FSL137H enters into “deep” green mode to reduce the standby power consumption decreases below V FB into burst-mode operation. When V ...

Page 11

... Figure 27. Figure 27. Constant Power Control Protections The FSL137H provides full protection functions to prevent the power supply and the load from being damaged. The protection features include: Latch / Auto Recovery Function The FSL137H provides additional protections by the VIN pin, such as pull-HIGH latch and pull-LOW auto recovery that depend on the application ...

Page 12

... Adapter Features High efficiency (>77.76% at full load) meeting Energy Star V2.0 regulation with enough margin Standby power <100mW at no-load condition Provides full protection functions: OVP Latch © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.2 Input Voltage Range FSL137H 90~264Vac OTP OLP Latch Auto restart Figure 30 ...

Page 13

... Core: EE16 Bobbin: EE16 TERMINAL NO Primary-Side Inductance=600μH ± 5% Primary-Side Effective Leakage<20μH ± 5% © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 (Continued) Figure 32. Transformer Diagram WIRE F 4 2UEW 0.3*1 1 2UEW 0.26*1 - COPPER SHIELD 10 TEX-E 0.35*1 CORE ROUNDING TAPE 13 Ts ...

Page 14

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2009 Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 6.67 6.096 3.683 3.20 3 ...

Page 15

... Fairchild Semiconductor Corporation FSL137H Rev. 1.0.3 15 www.fairchildsemi.com ...

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